ETI SSQ 263 load transfer switch 1-0-2, 2P 63A (2421426)

The ETI SSQ 263 load transfer switch is intended for manual switching of electrical circuits according to the 1-0-2 scheme, where it is necessary to move the load between two power sources or lines with an intermediate OFF position. Such equipment is used in power distribution systems at industrial, commercial, and residential facilities when clear circuit separation and safe load transfer are required without automatic control. This model has 2 poles and is rated for a nominal current of 63 A at an AC rated voltage of 400 V. These parameters make it suitable for use in three-phase or other two-wire circuits, depending on the connection scheme. The AC-22B utilization category indicates suitability for switching mixed resistive loads and circuits with a moderate inductive component, which is typical for many incoming and distribution lines. The switch is designed to operate at a nominal frequency of 50/60 Hz and complies with IEC 60947-3, the standard governing switches, disconnectors, and switching devices. This compliance confirms that the device is intended for use as part of low-voltage distribution equipment and switching assemblies. The IP20 protection rating means the unit is designed for installation inside electrical panels and enclosed distribution cabinets, where live parts are not directly accessible during normal operation. Connection of conductors is allowed up to 50 mm², which makes the device suitable for circuits with increased current load and for use with appropriately sized power cables. The 1-0-2 operating position provides straightforward manual control between two active positions and a neutral position, making the switch practical for backup supply arrangements, load transfer, and switching between main and reserve lines. As part of the SSQ 263 series, this load transfer switch is used in panel-mounted installations where reliable circuit selection, defined switching logic, and compliance with technical standards are important. Its functional design makes it appropriate for distribution boards in facilities that require safe and controlled load switching between separate electrical sources.